EP0740922B1 - Wet cleaning machine - Google Patents

Abstract

The vacuum cleaner has a container (2) for the cleaning fluid positioned above and/or at one side of the vacuum cleaner suction fan motor (4), e.g arranged in a ring around the outside of the motor. Pref. the cleaning fluid container is assembled from upper and lower container halves and provided with a carrying handle and a self-opening vent opening. The container may have a separator (8) driven via the suction fan motor.

Description

The invention relates to a wet cleaning device according to the preamble of claim 1.

Liquid bath vacuum cleaners are known which have a chassis, a liquid pool and a motor part with a separating device exhibit. In these known devices is in the lower part of the Device arranged the liquid container. Above that is the engine provided that drives a suction fan and the separator. Due to the tripartite division of the device, its handling, in particular cumbersome when changing the fluid. For this the engine must be removed from the container and then out of the Bottom part can be removed. Another disadvantage arises especially if immediately after switching off the engine residual liquid is still present in the area of the separating device is that after lifting the liquid container on the Floor drips or during cleaning work on the separating device gets into the blower housing. The liquid is emptied either through the filler neck or through the suction opening of the liquid container The cleaning of the inner part of the container is also difficult, because in the area of air inflow an installation part in the inside of the container protrudes. By arranging the separator immediately above the surface of the liquid incoming air that is forced through the liquid Drops from the liquid through the absorbed gas bubbles pulled up. They then hit the separation device. there the drops partially pass through the separating device. Any solid particles that are carried along are not thereby complete separated and emerge again at the air outlet. If the device is out of operation again, cleaning liquid can enter the the motor above evaporate. The water vapor then adheres on the device part, for example on a turbine, the engine itself, Housing parts and dirt deposits that affect them Discontinue parts. This humidification forms on the device parts Mold and the like, which in subsequent use of the device can be released into the air. Another The disadvantage is that for filling and emptying Filter liquid in the known devices, the relatively heavy motor unit or the engine is lifted from the liquid container and then, for example, must be parked on the floor. So that Separation device achieves the desired effect, they must known vacuum cleaning devices work at high engine speeds, which makes the devices very loud. There is also a risk that the devices suck in too much liquid and so the motor or the turbine are damaged.

The generic wet cleaning device (JA-A-7-111 962) sits the blower motor on a base. The motor shaft protrudes an opening in the bottom of the liquid container on the base is releasably attached. On the protruding into the container from below The separator is attached to the end of the motor shaft and with secured with a fastening cap that can be screwed onto the motor shaft. The liquid often has to be changed during the cleaning process become. For this it is necessary to first fill the opening unscrew the lid closing the container, then unscrew the fastening cap from the motor shaft and then to remove the separator from the motor shaft. Only then can remove the container from the base after loosening it. Designed through this changing the fluid becomes cumbersome and difficult.

Wet cleaning devices are also known (GB-A-497 666 and US-A-5 343 592), in which immovable, not rotatably driven Separating devices are provided.

The invention has for its object the generic wet cleaning device to be trained so that handling when changing the liquid is relieved.

This object is achieved according to the invention in the generic wet cleaning device with the characterizing features of the claim 1 solved.

In the wet cleaning device according to the invention is the rotatably driven Separator connected to the liquid container so that he removed it together with him to change the fluid becomes. The separator therefore does not have to be separate from the liquid container or be removed from the blower motor. Accordingly the liquid container can be easily combined with the Attach the separator to the wet cleaning device again. Designed through this changing the liquid is very easy and problem-free. This is helped by the fact that the liquid container is formed in two parts is. So the container top can be removed, so that the liquid is simply emptied from the lower part of the container and into it can be filled.

The liquid container is above, next to or around the engine arranged. This easily avoids that the cleaning liquid can evaporate into the engine when the device is turned off. This will cause mold to form on the device parts safely avoided. When using the separator can prevent that splashing water and coarse dirt to the separator arrives. In the event of vibrations while using the device can occur, and also when the device tilts or falls over the cleaning liquid cannot come into contact with the separator come. For filling and emptying the liquid container the blower motor does not have to be lifted off. simultaneously can reduce the working noise of the device become. Also a comparatively small device size and one significant weight reduction can be achieved. It is also advantageous that the center of gravity of the device is shifted as far down as possible can be achieved and thus the greatest possible stability becomes. Finally, due to the low evaporation of liquid the effectiveness of the separator can be improved in the motor, because the suction air with only a few liquid and solid particles is loaded. The device parts above the engine are after switching off the device by the rising warm air without Aid dried, which also makes mold formation reliable is prevented. The device advantageously consists of only two Main components, namely the liquid container and the lower part of the device, of the motor and possibly a cable winder wearing.

Further features of the invention result from the others Claims, the description and the drawings.

Fig. 1

in schematischer Darstellung und im Axialschnitt ein erfindungsgemäßes Naßreinigungsgerät,

Fig. 2 und 3

jeweils in Darstellungen entsprechend Fig. 1 weitere Ausführungsformen von erfindungsgemäßen Naßreinigungsgeräten,

Fig. 4

einen Flüssigkeitsbehälter des Naßreinigungsgeräts gem. Fig. 1 im Axialschnitt,

Fig. 5

einen Behälteroberteil des Flüssigkeitsbehälters gem. Fig. 4 im Axialschnitt,

Fig. 6

im Axialschnitt einen Behälterunterteil des Flüssigkeitsbehälters gem. Fig. 4,

Fig. 7 bis 9

in Darstellungen entsprechend den Fig. 4 bis 6 eine weitere Ausführungsform eines Flüssigkeitsbehälters des erfindungsgemäßen Naßreinigungsgeräts,

Fig. 10 und 11

in schematischer Darstellung und im Querschnitt den Eintrittsbereich der Saugluft beim erfindungsgemäßen Naßreinigungsgerät.

The invention is explained in more detail below with reference to some exemplary embodiments presented in the drawings. Show it

Fig. 1

in a schematic representation and in axial section an inventive wet cleaning device,

2 and 3

each in representations corresponding to FIG. 1 further embodiments of wet cleaning devices according to the invention,

Fig. 4

a liquid container of the wet cleaning device acc. 1 in axial section,

Fig. 5

an upper part of the liquid container acc. 4 in axial section,

Fig. 6

in axial section, a lower part of the liquid container acc. Fig. 4,

7 to 9

4 to 6 show a further embodiment of a liquid container of the wet cleaning device according to the invention,

10 and 11

in a schematic representation and in cross section the inlet area of the suction air in the wet cleaning device according to the invention.

The wet cleaning device is a so-called. Wet vacuum, for example used for cleaning floors and the like becomes. It has a mobile underframe 1 on which a Liquid container 2 is arranged. The base 1 preferably has an upwardly projecting housing part centrally 3, in which a motor 4 is housed. He stands upright and has an upstanding motor shaft 5, through an opening 6 of the housing part 3 upwards protrudes. With the motor shaft 5 is a via a clutch 7 Separator 8 connected, which is known per se and therefore it is not described in detail. The separator 8 is housed in the liquid container 2, the liquid 9, preferably water, through which the sucked in air passed in a manner to be described becomes.

The base 1 is with at least one air outlet 10 provided in the area next to the liquid container 2 arranged and directed obliquely upwards. Within of the base 1 is in the area in front of the Air outlet 10 at least one filter 11, which is also called Muffler is used. The filter 11 is advantageous as Reversible cassette designed with appropriate contamination one side can be turned.

Immediately above the floor 12 of the base frame 1 a cable drum 13 is provided on which the power cord 14 can be wrapped. The cable drum 13 is located below the motor 4, and its axis lies flush with the motor axis. The power cord 14 is through an opening 15 in a side wall of the base 1 led to the outside. Because the cable drum 13 in the area below the engine 4 close to the ground 12 of the base 1 is arranged, the power cord close to the floor 12 from the base 1 be led outside. Since the base 12 is also very close to the ground, does not provide the pulled out power cord 14 Trip hazard during cleaning with the device.

The liquid container 2 consists of an upper part of the container 16 and a container lower part 17 (Fig. 4 to 6). These two parts 16 and 17 are detachable with each other connected so that easy cleaning and / or maintenance of the liquid container 2 is guaranteed. moreover can the liquid container 2 easily and thus assemble inexpensively. The upper container part 16 has at least one ventilation opening (not shown), which automatically when the wet cleaning device is switched off is opened. This is advantageously a spring force upright striker used. The spring force is designed so that the locking part when commissioning of the wet cleaning device due to the resulting system vacuum against the spring force in its closed position is adjusted.

The lower container part 17 has an annular receiving part 18 for the liquid 9. The receiving part 18 has an outer ring wall 19 and a coaxial to this inner ring wall 20. Both ring walls are by one floor 21 lying perpendicular to them with each other connected. The inner ring wall 20 projects axially over the outer ring wall 19. At the upper end is the inner ring wall 20 into a dome part 22 on which the generator 8 (Fig. 1) sits. The dome part 22 is hollow and has an adjoining the end face of the ring wall 20, on a truncated cone wall 23 to which a cylindrical wall 24 connects that over another frustoconical wall 25 to another cylindrical Wall 26 connects. The dome part 22 is coaxial to the axis of the lower container part 17 and is continuously open, so that the motor shaft 5 (Fig. 1) and the corresponding wave of the separator 8 through the Dome part 22 can protrude.

In Fig. 4 the lower container part 17 is with another Formation of a dome part 22 provided. The cylindrical Ring wall 20 of the lower container part 17 goes into a Ceiling 27 lying perpendicular to it, which is a central one Has opening 28. There is one from the ceiling 27 cylindrical wall 29 vertically from along the edge the passage opening 28 runs and the upper free Edge is angled. The separator 8 is in the area arranged above the ceiling 27 so that it, in axial section gem. 4, the cylindrical wall 29 encloses. The shaft 30 of the separator projects into the dome part 2 8, via the clutch 7 (Fig. 1) with the motor shaft 5 is coupled.

In the cylindrical outer ring wall 19 there is an air inlet connection 31 (Fig. 6) provided near the upper edge of the outer ring wall 19 is provided and runs diagonally upwards.

The upper container part 16 has a cylindrical lower one Wall 32 over a lying on a truncated cone Intermediate wall 33 merges into a cone wall 34 in contrast to the intermediate wall 33 tapers upwards. At the the upper end of the cone wall 34 is closed by a ceiling 35, which are perpendicular to the longitudinal axis of the upper part of the container 16 extends. At least on the ceiling 35 a handle 36 is provided extending from the top the cone wall 34 extends from. It is in the axial direction longer than the cylindrical wall 32. The cone wall 34 protrudes slightly above the connection area of the Partition 33 (Fig. 5). This protruding edge 37 interacts with the lower container part 17. So can between the edge 37 and the outer ring wall 19 of the lower container part a seal can be inserted to a tight connection between the upper and lower part of the container to reach.

When assembled, the cylindrical wall protrudes 33 of the upper container part 16 in the annular receiving part 18 (Fig. 4). The wall 32 is so long that it Air inlet connector 31 down towards the Bottom 21 of the lower container part 17 protrudes. The partition 33 lies in the area above the air inlet connection 31, so that the entering through the nozzle 31 Do not air directly up into the upper part of the container can flow. Rather, it is through the air inlet nozzle 31 entering air through the cylindrical Wall 32 and the intermediate wall 33 of the upper part of the container 16 deflected downwards, so that it is inevitable gets into the liquid 9. The cylindrical wall 32 and the frustoconical, sloping upwards Wall 33 of the upper container part 16 thus form a deflection device for the entering dirty air. The cylindrical Wall 32 protrudes far enough into the liquid so that the dirty air is forced over a large distance down through the liquid 9 and below to flow through the cylindrical wall 32 (cf. Arrow in Fig. 4).

The liquid container 2 is on the housing part 3 of the base 1 placed (Fig. 1). The housing part 3 of the base 1 can be so high that the Liquid container 2 with the ceiling 27 on the housing part 3 rests. But it is also possible to use the liquid container with the bottom 21 on the top of the base 1 to put. It is possible to use the liquid container 2 and the base 1 by a lock or the like. To connect firmly. It but it is also possible to loose the liquid container 2 to put on the housing part 3. Because the liquid container 2 while cleaning with liquid 9 is filled, the liquid container is sufficient heavy so that it is safe even without additional security is held on the base 1.

Even with a design of the lower container part 17 of the 6 can be the liquid container Liquid container in the manner described on the base Hold 1.

For cleaning, the corresponding suction hose connected in a known manner. The power cord 14 is from the base 1 pulled out and into the corresponding Socket plugged in. The suction process can now be carried out become. The suction air laden with dirt arrives via the air inlet nozzle 31 into the liquid 9. There it is through the described deflection device 32, 33 in contact with the Liquid kept. The one under the cylindrical wall 32 air passing through is separated by the separator 8 the motor shaft 5 is rotatably driven, sucked. On the separator 8, the in dirt particles still present in the suction air, while the air through openings (not shown) in the separator 8 downwards in the direction of that in FIG. 1 drawn flow arrows is guided. The air gets in through the opening 6 in the top of the housing part 3 of the underframe 1 in at least one flow space 38 (Fig. 1) which is advantageously annular is and between the inner wall of the housing part 3 and the motor housing. In this Flow space 38 flows the cleaned air downwards in the base 1 and is via the filter 11 to Air outlet led out of which the cleaned air again exit. The flow space 38 can also through the Ridges distributed circumferentially into individual flow channels be divided.

When passing through the liquid 9, the in the dirt and / or the air sucked in Dust particles in the liquid 9. The separator 8 then separates any dirt still in the air / Rod particles from the air, so that at the air outlet 10th cleaned air escapes. Since the liquid container 2 the housing part 3 and thus the motor located therein 4 encloses, the liquid container 2 acts as Soundproofing unit, which emanates from the engine 4 Superbly dampens noise. This is a separate one Soundproofing not required. As a result of Deflection device 32, 33 becomes an undesired entry from liquid to separator 8 simply prevented. The conical partition 33 covers the inflow area the dirty air upwards, so that when entering this dirty air into the liquid 9 Splashes through this partition 33 as well the ring wall 32 is intercepted. When passing through the liquid 9, the air flow is calmed, so that after passing under the cylindrical wall 32 air flowing upward from the liquid 9 none or at most only a few splashes. The Danger that these splashes get to the separator 8, is very small because it is at a considerable distance from the Liquid 9 in the area above the engine 4 and Housing part 3 is arranged. The separator 8 is dirty therefore during the use of the wet cleaning device not so that its cleaning effect also a long service life of the wet cleaning device excellent remains.

Due to the described design of the liquid container there is a low center of gravity of the Wet cleaning device, so that during the cleaning process there is no risk that it will tip over. moreover is through the two ring walls 19, 20 of the lower container part 17 and through the wall of the housing part 3 and through the flow space 38 an optimal sound insulation or noise reduction achieved so that the wet cleaning device works with a very low sound level. That is why additional noise reduction measures, such as Sound insulation elements, for example sound insulation panels and the like, not mandatory.

The liquid container 2 is advantageous over a Central lock (not shown) with the base 1 connected. This allows the liquid container 2 very easily removed from underframe 1 or with be connected to him. The container top 16 has the Handle 36 with which the liquid container from the base 1 can be lifted off. The heavy engine remains on the base frame and does not have to be lifted off. This is a change or exchange of the liquid 9 easily possible. Since the separator 8 on the lower part of the container 17 is arranged, it will take off of the liquid container 2 is withdrawn from the motor shaft 5. The coupling between motor shaft 5 and separator shaft 30 is designed as a plug-in coupling, which is a simple Allows releasing the clutch. This has the advantage that the user of the wet cleaning device when Empty the liquid container 2 and the separator 8 must take directly in hand. Then he can easily detect whether the separator 8 is dirty and, if necessary, must be cleaned. This ensures that the separator 8 always clean for optimal cleaning is held. The liquid container lifted from the base 2 is easy to clean. The upper housing part 16 can be removed from the lower housing part 17 be so that the separator 8 is easily accessible.

The stability of the wet cleaning device is not only through the described design of the wet cleaning device reached; this also makes a decisive contribution that the cable drum 13 near the bottom 12 of the base 1 arranged in the area below the engine 4 is. This results in an extremely deep one Main focus of the wet cleaning device. The cable drum is designed so that it is spring-loaded in the winding direction is. The cable drum 13 wraps around how known, the power cord automatically on.

The upper container part 16 is designed so that also at when moving the device no liquid to the separator 8 arrives. If the liquid container 2 or even turned the entire wet cleaning device upside down are, the liquid 9 collects on the Cover 35 of the upper housing part 16, which is now the bottom forms. The ceiling 35 is at such a distance from the separator 8 that the liquid is not up to the Separator is enough. This also prevents liquid via the flow space 38 inwards into the housing part 3 and thus reaches the engine 4.

It is advantageous if the dirty air, which over the Air inlet nozzle enters, in contact as long as possible is held with the liquid 9. The longer the Dirty air is in contact with the liquid 9 in order so more dirt / dust particles can get in with the liquid connect and the better the separation this paragraph. This is how long the liquid stays To achieve 9, the liquid is advantageous in rotating movement offset. This rotation is in simple way through the dirty air to be cleaned achieved itself. 11 schematically shows one possibility through tangential introduction of the dirty air over the air inlet nozzle 31 the liquid in rotation to move, the rotation of the liquid 9 in same direction as the rotation of the separator 8. The air inlet nozzle lying tangentially Incoming dirty air is circulated displaces and initially flows in the area between the outer Ring wall 19 and the cylindrical wall 33 (Fig. 4). The coarse dirt is optimally removed from the air removed, as a result of this circular flow a long Residence time of the dirty air in the liquid 9 reached becomes. After passing under the wall 32 occurs the cleaned air in the manner described above and is sucked in through the separator 8, at which. Fine particles still present in the air are separated become.

It is also possible to change the direction of rotation of the liquid 9 through the introduction of the suction air opposite to Form the direction of rotation of the separator 8. This has the Advantage that the suction air above the liquid 9th slowed down by the flow and thus slows down. The suction air can therefore carry less water droplets with it and correspondingly fewer drops or solid particles transport to separator 8. To counter this against the direction of rotation the flow direction of the separator 8 to reach, connects to the air inlet connection 31 a deflection device 39, as shown schematically in FIG Fig. 10 is shown. This deflector will by a in the inflow area to the inner wall of the outer ring wall 19 adjacent baffle plate formed, which is bent at a distance from the ring wall 19, that they are the incoming dirty air in a circular motion within the liquid 9 forces. The deflection device 39 is arranged so that the direction of flow is opposite to the direction of rotation of the separator 8. As shown in FIG. 10, the deflection plate 39 connects to the the rear edge of the air inlet connection in the direction of flow 31 and extends advantageously over the entire height of the cylindrical wall 32 (Fig. 4) of the Liquid container 2.

The arrangement of the separator 8 in the area above the Motor 4 has the further advantage that the motor 4 rising, through the opening 6 in the housing part 3 and through the passage opening 28 in the ceiling 27 of the Liquid container 2 warm air inevitably gets to the separator 8, which thereby ends the cleaning work is optimally dried. The warm air emitted by the engine 4 also arrives through these openings into the interior of the liquid container 2, so that its inner walls are also warm Air. This will cause mold to form avoided. It therefore does not exist the risk that in a subsequent cleaning process the molds are released into the air.

By the located in the area in front of the air outlet 10 Filter 11 can be reached very easily that the exhaust air can be used specifically as compressed air can. This is especially the case if as a filter 11 a silencer cassette is used, the is also referred to as a reversible cassette. The silencer cassette 11 can also with a filter system be equipped to accommodate microparticles serves. The filter system can optionally be made from a dry or wet filter element / liquid bath.

In Fig. 1 is the reversed position with dashed lines the silencer cassette 11 shown. The air outlet connector 10 is on the silencer cassette 11 provided and in the turned position within the base 1 directed obliquely downwards. The filter part 11 'is then in front of a passage opening 60 in the top of the base frame 1 Passage opening 60 protrudes the air outlet 10 in the position shown in Fig. 1 with solid lines.

At least in the flow direction behind the separator 8 a preferably replaceable filter element 61 be provided in order not to be rejected by the separator 8 Catch dirt particles and drops. The filter element 61 is housed in the housing part 3. The air must flow through the filter element 61 before it to the blower motor 4 arrives. The filter element 61 ensures that the interior walls of the housing that are connected to the exhaust air come into contact, not exposed to dirt become.

The filter element 61 preferably consists of a metal mesh or another chemical or temperature resistant Material so that it is in a washing liquid cleaned or boiled for sanitation can be.

Fig. 1 also shows the possibility of exhaust air through a To heat heater 62. It is in the housing part 3 in the area between the separator 8 and the blower motor 4 accommodated. The warmed air can be used for additional devices be used.

Is in the housing part 3 between separator 8 and blower motor 4 the filter element 61 arranged, then the heated Exhaust air for drying the filter element 61 and the separator 8 after switching off the wet cleaning device serve. The heater 62 is in this case between the filter element 61 and the blower motor 4.

Finally, also in the area of the air outlet 10, a heater 63 can be provided to the exhaust air immediately before exiting the air outlet port 10 to heat.

7 to 9 show a liquid container 2a, in which the air inlet port 31a on the upper part of the container 16a is provided. The upper part of the container 16a has again the cylindrical wall 32a, which in the annular Receiving part 18a of the lower container part 17a engages (Fig. 7). In contrast to the previous embodiment the cylindrical wall 32a directly adjoins the Cone wall 34a, which tapers upwards is. The container top 16a has the ceiling 35a according to the previous embodiment just formed and the upper end of the upper part of the container 16a forms.

At the transition from the cylindrical wall 32a into the cone wall 34a is the upper container part 16a with a circumferential one Provided flange 40 on a cone jacket lies and the free edge 41 angled downward is. The upper part of the container 16a lies on the edge 41 the container lower part 17a. As in the previous embodiment has the cylindrical wall 32a of the container top 16a distance from the bottom 21a of the lower container part 17a. This can be described in later Way that flowing through the air inlet port 31a Flow dirty air under the cylindrical wall 32a. As Fig. 7 shows, the cylindrical wall lies 32a - as in the previous embodiment - approximately in half Width of the annular receiving space for the liquid 9. The flange 40 covers this receiving space in the Area between the cylindrical wall 32a and the outer Ring wall 19a upwards. The air inlet connector 31a is provided in flange 40 and is advantageous diagonally upwards.

The container lower part 17a is essentially the same trained as in the previous embodiment. He has the two coaxial cylindrical Ring walls 19a and 20a through the flat bottom 21a are interconnected. The radially inside Ring wall 20a projects beyond the radially outer ring wall 19a in the axial direction. The dome part 22a is in contrast to the previous embodiment within the the annular wall 20a enclosed receiving space 42 and is axially exceeded by the annular wall 20a. On the dome part 22a is like in the previous embodiment the separator (not shown) is rotatably supported. The dome part 22a has that lying on a conical surface Wall 23a that faces the inside of the ring wall 20a followed. As in the embodiment of FIG. 6 the cone wall 23a is inclined radially outwards and downwards, so that liquid dripping from the separator of this wall 23a flow back down into the liquid 9 can. Since in the embodiment of FIG Ring wall 20a protrudes over the dome part 22a, are over the circumference of the annular wall 20a arranged drain openings 43 provided down through the cone wall 23a are limited. This can be from the separator to the Wall 23a dripping liquid over the drain openings 43 get down into the liquid.

The ring wall 19a is outward at the upper end angled that one lying on a cone jacket Ring wall 44, the ring wall 19a with a cylindrical upper, axially relatively short annular wall 45 connects.

The upper container part 16a is in turn detachable from the lower container part 17a connected. The container top 16a is inserted into the lower part of the container 17a so that it with the edge 41 projecting downward on the ring wall 44 of the container lower part 17a rests. Both parts of the container 16a, 17a are of course sealed together connected.

As has been described in detail with reference to FIG. 1 the liquid container 2a is on the central one Housing 3 of the base 1 placed and locked. The separator shaft is used during this push-on operation 30 pushed onto the motor shaft 5. Like the previous one Embodiment can form and / or this connection done non-positively. The separator shaft 30 can also via a (not shown) magnetic drive with the Blower motor 4 be connected to the drive. Such a drive connection can also in the previous embodiment be provided. The liquid container 2a will advantageous with a central lock with the base connected. At the air inlet port 31a the suction hose connected. After switching on the Motor 4 becomes shaft 30 of the separator via motor shaft 5 8 rotatably driven. The inflowing Dirty air flows into the liquid 9, the Particles of dirt from the liquid, preferably water, be bound. The inflow area of the dirty air can, as described with reference to Figures 10 and 11 has been designed to last a long time To reach residence time of the dirty air in the liquid 9. As in the previous embodiment, by the ring flow of the liquid 9 and the dirty air an even air distribution and a high degree of cleaning the dirty air reached. The air goes under through the cylindrical wall 32a flows in the area between the outer wall 32a, 34a of the upper part of the container 16a and the inner ring wall 20a of the lower container part 17a upwards. On the ceiling 35a of the upper part of the container 16a, the already largely cleaned air becomes Diverted separator. The separator 8 separates as in previous embodiment in the air possibly still existing Particles in a known manner from the air then gets into the flow space 38 (Fig. 1). Here the air flows between the motor 4 and the housing part 3 down. In the area within the base 1 an air deflection 46 (FIG. 1) is provided by which the air flowing down to the filter 11 and so that is directed to the air outlet 10. Because the ring wall 20a axially projects beyond the dome part 22a, the separator optimally protected against splash water and coarse dirt. The liquid container 2a is the same as the previous one Embodiment trained so that even with one No tipping of the wet cleaning device the separator 8 and can reach the motor 4. The Container upper part 16a is designed so that between sufficient space for the separator and the ceiling 35 stands to the liquid 9 in such a case to record without reaching the separator. Due to the protected arrangement of the separator - as in the previous embodiment - ensures that even vibrations when using the wet cleaning device can arise, the separator 8 not the liquid 9 comes into contact. As a result of the lesser Loading the suction air with liquid and / or The function of the separator becomes solid particles 8 significantly improved.

Otherwise, the wet cleaning device with the liquid container 2a acc. 7 to 9 of the same design as in the previous embodiment.

Fig. 2 shows an embodiment that is similar is like the embodiment of Fig. 1. The separator 8 is however not driven by the motor 4, but has its own motor 47. The engine 4 is housed in the base frame 1 and arranged horizontally, so that its axis is horizontal. The liquid container 2b is also essentially the same formed as in the embodiment of Fig. 1. The Liquid container 2b has the upper container part 16b, which is the same as the gem. Fig. 1. The lower part of the container 17b, which is detachable with the upper part of the container 16b is connected, has the two coaxial cylindrical Walls 19b and 20b through the flat floor 21b are interconnected. The radial distance between the two Ring walls 19b, 20b is larger than in the previous embodiment, since the engine 4 is not on, but inside the base 1 is housed. The separator 8 is mounted on a blanket 48, which through the the annular wall 20b enclosed receiving space upwards covers. The motor 47 for driving the separator 8 protrudes from above into the recording room 49.

To protect the separator 8 against splashes, is on a peripheral flange 50 at the upper edge of the annular wall 20b provided that slants downward.

The receiving space 49 connects to one in the base provided deflection 51 through which the in the receiving space 49 suction air flowing down in the direction of the air outlet 10 is redirected to the top of the base 1 is present. The deflection 51 is channel-shaped and connects the recording room 49 with at least one horizontally running flow space 52, through which the suction air to the air outlet 10 can flow. The flow space 52 is designed as an annular space, which surrounds the motor 4 '. To the engine 4 is a Fan 53 connected, driven by the engine becomes.

The through the air inlet connector in the lower part of the container 17b incoming dirty air flows in the described Way through the liquid 9 in which it is from the Dirt particles is freed. The air flows under the cylindrical wall 32b. The purified air then flows upwards to the separator 8, at which any particles still present in the air are separated become. Via the receiving space 49, the deflection channel 51 and the cleaned suction air flows to the flow space 52 Air pass 10.

To improve the splash water protection, it is on one Intermediate wall 33b of the upper part of the container lying in a cone 16b beyond the cylindrical wall 32b extended. The protruding edge 54, the obliquely after runs inclined at the bottom, forms an excellent Splash protection. In conjunction with that in the area Flange 50 is thus provided above this edge 54 excellent splash protection for the separator 8 reached.

Because the separator 8 with the motor 47 is independent of the motor 4 is rotatably driven, for both components the optimal speeds are set. So he can Separator 8 to achieve a high cleaning effect are driven at high speed while for that Suction fan 53 a lower speed is quite sufficient. Otherwise, the wet cleaning device according to Fig. 2 designed the same as in the embodiment of Fig. 1. On the chassis 1 can instead of the liquid container 2b also a liquid container is arranged be, in which the air inlet connector is not on Lower part of the container, but according to the embodiment 7 to 9 on the upper container part 16b is provided.

The liquid container can also be used in the exemplary embodiment according to FIG. 2 2b without the motor from the base 1 be removed so that easy cleaning of the Container is possible, as is shown in FIGS. 1 and 4 to 6 has been explained.

2 can also be in the range between the separator 8 and the blower motor 4 the filter element 61 can be arranged through which the exhaust air must inevitably flow. Furthermore, also at least one heater may be provided.

Fig. 3 shows an embodiment in which the liquid container 2c on the base 1 in the area next to the engine 4 is arranged. The liquid container 2c again consists of the upper container part 16c and the detachably connected to it lower container part 17c. The The lower container part 17c contains the cleaning liquid 9 and has the two coaxial ring walls 19c, 20c. The radially inner ring wall 20c projects beyond the outer ring wall 19c and carries the separator 8. The outer Ring wall 19c also has the air inlet connection 31c.

The container top 16c has the flat ceiling 35c that the upper end of the wall 34c, which in contrast to the embodiments according to FIGS. 1 and 2 cylindrical is trained. It merges at the bottom the conical partition 33c into the cylindrical Wall 32c over, as in the previous performance examples has a smaller radius than wall 34c. The upper part of the container 16c and the lower container part 17c are in the Contrary to the previous embodiments, loosely placed on top of each other. The cylindrical wall 32c forms together with the intermediate wall 33c which is inclined radially inwards is arranged, the deflection device for the in Dirty air flowing into the air inlet port 31c. The wall 32c is spaced from the flat bottom 21c of the lower part of the container 17c. The over the air inlet port 31c Incoming dirty air can within in a known manner of the container lower part 17c are guided, such as this has been explained with reference to FIGS. 10 and 11. The Air is placed in a circular flow, so that through the rotation in the liquid 9 coarse dirt and the sucked in dirty air for longer the liquid 9 stays connected. Because the separator 8 arranged at a great distance above the liquid 9 is, it is not or only slightly by splashes dirty. The entrance area also contributes to this the dirty air through the intermediate wall 33c is covered above.

The liquid container is the same as the previous one Embodiments, provided with a handle so that it can be easily removed. This handle is the one For clarity not shown in Fig. 3.

The motor 4 is housed in a housing 55 which next to the liquid container 2c on the base 1 is arranged. The motor'4 is arranged upright, see above that its axis is perpendicular. He drives the blower 53, which is also housed in the housing 55. The motor shaft 5 projects downward into a recess 56 in the top of the base 1. The shaft 30 of the Separators 8 is coupled to an intermediate shaft 57, which runs parallel to the motor shaft 5. The two waves 5 and 57 are drive-connected to one another, in the illustrated Embodiment by a belt drive 58. Instead of the belt drive 58, a chain drive, a gear transmission and the like may be provided. The Reimentrieb 58 has the advantage of a low noise Drive. The belt drive 58 lies in the depression 58th

The housing 55 is open at the bottom and is thus in connection with the recess 56. It extends in the longitudinal direction of the base 1 and is in essentially closed upwards. Only in the area of the receiving space 42c of the container lower part 17c the recess 56 open. This allows the cleaned Air behind the separator 8 through the receiving space 8c in enter the recess 56. Here it flows in the longitudinal direction the deepening to the area below the Housing 55. The cleaned flows out of the recess 56 Air drawn in by the blower 53 toward the flow arrows drawn up and occurs through at least one air outlet 10 to the outside. The Exit opening of the recess 56 is at the cross section of the housing 55 adapted.

The inner wall of the housing 50 is also advantageous Soundproofing parts 59 occupied, so that an optimal noise reduction is achieved.

The liquid container 2c is advantageous over a Central lock (not shown) on the base 1 attached. It can be released after loosening the central lock simply lift off the base 1. in this connection also the shaft 30 of the separator 8 from the intermediate shaft 57 deducted in a suitable manner on the base 1 is stored. The connection between the both shafts 30 and 57 are positive and / or non-positive.

The liquid container 2c has, as with the others described embodiments, cylindrical cross section. The housing 55 also advantageously has a cylindrical shape Cross-section; but it can also be anyone else have a suitable cross-section. Both housing 2c and 55 are advantageously the same height.

It is possible to have the separator 8 in the liquid container 2c to be rotatably driven by a separate drive, as has been explained with reference to FIG. 2. In this Trap can the separator 8 at a higher speed are operated as the blower 53. The cable drum 13 is on the floor inside the underframe 1 rotatably mounted.

The filter element 61 can be arranged in the receiving space 42c his. A heater 62 can also be provided in the housing be the exhaust air before it exits the air outlet 10 to heat. The heater 62 is in the direction of flow arranged behind the blower motor 4.

In all of the exemplary embodiments described the liquid container 2, 2a to 2c with an optical Be equipped with the degree of pollution the liquid 9 indicates. Such sensors are known and are therefore not explained in more detail. This optical sensor can be designed so that it by optical and / or acoustic signal to the user of the Wet cleaning device indicates that the liquid 9 has too high a degree of contamination. It it is also possible to use this sensor signal to turn off the wet cleaning device so that the user is definitely forced to liquid 9 replaced. Is a given degree of pollution reached, the ability of the liquid to bind decreases strongly, so that the cleaning effect is only minimal is.

The liquid container 2, 2a to 2c can also be used a level indicator. It is beneficial designed to alert the user that a maximum and a minimal filling level is reached. In this case, an optical and / or acoustic signal generated. It is also possible to do this Use signal to switch off engine 4. Becomes the wet cleaning device is operated with too little liquid, can the existing in the sucked in dirty air Particles are not bound sufficiently so that a large part of the dirt taken away and at the air outlet is blown out. If the wet cleaning device for Sucking up liquid is used for one too high liquid level in the liquid container of suction. By the described Monitoring device will ease this risk Avoided way.

The wet cleaning device only consists of two main components, the base 1 with the motor 4 and cable winder as well as the liquid container in the area arranged above the engine or next to the engine his or, as shown in FIG. 1, can surround him. This allows the liquid container to be filled and Drain without the heavy engine 4 from the base frame 1 be removed. Because of the training described there is a small size of the wet cleaning device and a significant weight reduction. The focus the wet cleaning device is due to the described Arrangement very deep, so that the device is optimal Has stability.

The wet cleaning device is advantageous to a very low Protective extra low voltage of 24 V, for example. This means security measures with regard to Isolation and splash protection, as they are with devices with mains connection voltages of 230 V are necessary, not mandatory.

Claims (26)

1. A wet cleaning apparatus having a container (2, 2a to 2c) for cleaning liquid, which is disposed above and/or laterally in the vicinity of a blower motor (4), and with an intake connection (31, 31a to 31c), behind which is attached downstream a rotatably driven separator (8) and at least one air outlet opening (10), whereby the liquid container (2, 2a to 2c) consists of a lower container part (17, 17a to 17c) for accomodating water and an upper container part (16, 16a to 16c),
   characterized in that the separator (8) is for lifting purposes securely connected with the liquid container (2, 2a to2c).
2. Apparatus according to claim 1,
   characterized in that the liquid container (2, 2a) annularly encircles the motor (4).
3. Apparatus according to claim 1 or 2,
   characterized in that the upper container part (16, 16a to 16c) comprises at least one automatically opening aeration opening as well as a handle (36).
4. Apparatus according to one of the claims 1 to 3,
   characterized in that the separator (8) is drivingly connected with the blower motor (4).
5. Apparatus according to one of the claims 1 to 4,
   characterized in that the separator (8) is form-fit or power-fit connected with the shaft (5) of the blower motor (4), and that advantageously the shaft (30) of the separator (8) and the shaft (5) of the blower motor (4) are aligned with one another and are disposed vertically.
6. Apparatus according to claim 5,
   characterized in that the shaft (30) of the separator (8) is encircled by the liquid container (2, 2a to 2c).
7. Apparatus according to claim 5,
   characterized in that the shaft (30) of the separator (8) and the shaft (5) of the blower motor (4) are disposed parallel to each other and that they are preferably drivingly connected with one another by an endless drive (58), a gear and the like.
8. Apparatus according to one of the claims 1 to 4,
   characterized in that the separator (8) is drivingly connected with the blower motor (4) via a magnet drive.
9. Apparatus according to one of the claims 1 to 3,
   characterized in that the separator (8) has its own drive motor (47).
10. Apparatus according to one of the claims 1 to 9,
    characterized in that the liquid container (2b) comprises for protection of the separator (8) from splashing liquid (9) at least one splash protection means (50, 54), which is advantageously a flange that projects from a wall (20b, 33b) of the container.
11. Apparatus according to one of the claims 1 to 10,
    characterized in that the liquid container (2, 2a to 2c) has a central receiving chamber (42) that is open toward the bottom and is delimited by a vertical standing angular wall (20, 20a to 20c), which is preferably surrounded by and spaced from a further angular wall (19, 19a to 19c) and that advantageously the two angular walls (19, 19a to 19c; 20, 20a to 20c) are interconnected by a bottom (21, 21a to 21c).
12. Apparatus according to claim 11,
    characterized in that the inner ring wall (20, 20a to 20c) is provided with a cover (27)) at the upper end, which partially closes off the receiving chamber (42) towards the top and on which the separator (8) is provided.
13. Apparatus according to one of the claims 1 to 12,
    characterized in that the intake connection (31, 31 a to 31 c) is provided at the liquid container (2, 2a to 2c) and advantageously disposed in such a way that inflowing air imparts rotation to the liquid (9).
14. Apparatus according to one of the claims 1 to 13,
    characterized in that a deflection means (39), preferably a deflection plate, is disposed in the region of the intake connection (31, 31a to 31c) in such a way that the direction of flow of liquid (9) is counter to the direction of rotation of the separator (8).
15. Apparatus according to one of the claims 1 to 14,
    characterized in that a cable reel-in mechanism (13) is settled in the region below the blower motor (4), preferably on a base of the undercarriage (12).
16. Apparatus according to one of the claims 1 to 15,
    characterized in that the liquid container (2, 2a to 2c) is provided with an indicator means with an optical sensor, which indicates the degree of contamination of the liquid (9).
17. Apparatus according to one of the claims 1 to 16,
    characterized in that the liquid container (2, 2a to 2c) has a preferably optical indicator means which indicates an overcharge and/or a too low fill-up of the liquid container (2, 2a to 2c).
18. Apparatus, which is provided with a undercarriage, according to one of the claims 1 to 17,
    characterized in that the liquid container (2, 2a to 2c) is connected to the undercarriage (1) via a central closure means.
19. Apparatus according to one of the claims 1 to 18, characterized in that a noise dampening means (11), advantageously a noise dampening cassette is disposed ahead of the air outlet opening (10), the noise dampening means preferably provided with a filter system for capturing microparticles and that preferably the filter system selectively consists of a dry or wet filter element/liquid bath, which preferably comprises a separator.
20. Apparatus according to one of the claims 1 to 19,
    characterized in that the blower motor (4) is accomodated in the undercarriage (1), preferably is arranged in a lying position.
21. Apparatus according to one of the claims 1 to 19,
    characterized in that the blower motor (4) is disposed upright standing on the undercarriage (1), preferably next to the liquid container (2c).
22. Apparatus according to one of the claims 1 to 21,
    characterized in that a flow obstruction means (32, 32a to 32c) projects into the liquid (9), spaced from the side walls (19, 19a to 19c; 20, 20a to 20c) of the liquid container (2, 2a to 2c) which obstructions means preferably extends parallel to the side walls (19, 19a to 19c; 20, 20a to 20c) of the liquid container (2, 2a to 2c) and is an annular wall, projecting from the upper container part (16, 16a to 16c) downwardly.
23. Apparatus according to one of the claims 1 to 22,
    characterized in that the air intake region in the liquid container (2, 2a to 2c) is covered toward the top by a wall (33, 33a, 33b).
24. Apparatus according to one of the claims 1 to 23,
    characterized in that at least one filter element (61) is disposed in the region between the separator (8) and the blower motor (4).
25. Apparatus according to one of the claims 1 to 24,
    characterized in that in the direction of flow behind the separator (8) at least one heating element (62) is disposed.
26. Apparatus according to one of the claims 1 to 25,
    characterized in that the apparatus is driven by a protective low tension.

Images